Support HTTP and HTTPS connections to unfuddle, defaulting to HTTPS

Existing service configurations do not represent their preference for
HTTP over HTTPS, so it is assumed that they will need to continue using
HTTPS.

This change changes the logic to only switch the protocol from HTTPS to
HTTP if it is requested by the user configuring the service instance.
This makes the change opt-in and therefore backwards compatible with
existing data, while still providing the opportunity to switch over to
plain HTTP for API usage, which is really the only way to use the API
for the smaller Unfuddle plans.

docs/unfuddle

@@ -27,4 +27,4 @@ data
   - subdomain
   - username    (Unfuddle API account holder)
   - password    (Unfuddle API account password)
-  - ssl         (Unfuddle account with SSL support)
+  - httponly    (Unfuddle accounts mostly support HTTPS; HTTP can be used for accounts where HTTPS is not supported)

services/unfuddle.rb

@@ -1,17 +1,17 @@
 class Service::Unfuddle < Service
   string   :subdomain, :repo_id, :username
   password :password
-  boolean  :ssl
+  boolean  :httponly
 
   def receive_push
     u_repoid    = data['repo_id'].to_i
     repository  = payload['repository']['name']
     branch      = branch_name
     before      = payload['before']
-    # use https for accounts that support SSL
-    scheme      = "http#{(data['ssl'].to_i == 1 && 's') || ''}"
+    # use https by default since most accounts support SSL
+    protocol    = data['httponly'].to_i == 1 ? 'http' : 'https'
 
-    http.url_prefix = "#{scheme}://#{data['subdomain']}.unfuddle.com"
+    http.url_prefix = "#{protocol}://#{data['subdomain']}.unfuddle.com"
     http.basic_auth data['username'], data['password']
 
     # grab people data for matching author-id